Nursing Elites

1. When reviewing the demographics of ethnic groups in the United States, which group does the nurse recall as the largest and fastest-growing population?

• A. Asian
• B. Hispanic
• C. American Indian
• D. African American/Black

Correct answer: B

Rationale: The correct answer is 'Hispanic.' Hispanics are the largest and fastest-growing population in the United States. While African Americans/Blacks, Asians, American Indians, and other groups are significant, Hispanics currently represent the largest demographic group. African American/Black, Asian, and American Indian populations are substantial but not as large or fast-growing as the Hispanic population. Therefore, Hispanic is the most appropriate choice in this scenario.

2. When considering the concepts related to blood pressure, which statement best describes the concept of mean arterial pressure (MAP)?

• A. MAP is the pressure of the arterial pulse.
• B. MAP reflects the stroke volume of the heart.
• C. MAP is the pressure forcing blood into the tissues, averaged over the cardiac cycle.
• D. MAP is an average of the systolic and diastolic blood pressures and reflects tissue perfusion.

Correct answer: C

Rationale: Mean Arterial Pressure (MAP) is the pressure that forces blood into the tissues, averaged over the cardiac cycle. It is not the pressure of the arterial pulse (Choice A), nor does it directly reflect the stroke volume of the heart (Choice B). While MAP involves systolic and diastolic pressures, it is not simply an average of these two values as diastole lasts longer. Instead, MAP is closer to diastolic pressure plus one third of the pulse pressure. The best description of MAP is that it represents the pressure forcing blood into the tissues, averaged over the cardiac cycle.

3. When printing out an EKG, a nurse notices that the QRS complexes are extremely small. What should be the next step?

• A. Alert the physician immediately as this is a sign of impending cardiac arrest.
• B. Check to see that all leads are attached and rerun the EKG.
• C. Increase the sensitivity control to 20 mm deflection.
• D. Decrease the run speed to 50.

Correct answer: C

Rationale: Increasing the sensitivity control to 20 mm deflection will double the sensitivity, allowing for better observation of the small QRS complexes. This step is crucial in obtaining a clearer EKG reading. Choice A is incorrect because small QRS complexes do not necessarily indicate impending cardiac arrest; it's more likely a technical issue. Choice B is not the first step to take when small QRS complexes are observed; it's important to adjust the settings first. Choice D is incorrect because decreasing the run speed to 50 is not the appropriate action for this situation; adjusting the sensitivity control is more relevant to improve the visualization of the complexes.

4. A client is preparing to administer an enema to a 64-year-old client. Which of the following actions of the nurse is most appropriate?

• A. Assist the client to lie in the semi-Fowler position
• B. Apply lubricating jelly to the tip of the catheter before insertion
• C. Instill a total of 30cc of fluid into the client's rectum
• D. Ask the client to hold the solution in for 30 seconds

Correct answer: B

Rationale: When administering an enema to a client, the nurse should place the client in the Sims' position for easy access. The correct action is to apply lubricating jelly to the tip of the catheter before insertion to facilitate a smoother procedure. It is essential to instill a maximum of 750 to 1000 cc of fluid for an adult client, not just 30cc. Following administration, the nurse should ask the client to hold the solution for at least 5 minutes to allow for the desired effect of the enema. Therefore, choice B is the most appropriate action, as choices A, C, and D are incorrect due to inaccuracies in positioning, enema volume, and retention time.

5. Which of the following safety precautions should the nurse discuss when working with an immunocompromised client?

• A. Avoid canned foods and increase consumption of fresh fruits and vegetables
• B. Hand-wash utensils after use and allow them to air dry
• C. Only drink tap water that has been filtered or boiled before consumption
• D. Never eat meals prepared in restaurants

Correct answer: C

Rationale: The correct answer is to only drink tap water that has been filtered or boiled before consumption. Immunocompromised clients are susceptible to infections, so it is essential to take precautions to prevent exposure to harmful pathogens. Drinking tap water that has been filtered or boiled helps eliminate potential pathogens that could be harmful to the client's health. Choices A, B, and D do not directly address the issue of avoiding potential pathogens that could compromise the health of an immunocompromised client. Thus, they are incorrect. Hand-washing utensils, avoiding canned foods, and increasing fruit and vegetable consumption are good general hygiene practices but may not specifically address the needs of an immunocompromised client.

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